mclewee



(No Model.) 2 Sheets-Sheet 1. W. S. McLEWEE.

FORGED DRAFT LAMP.

No. 320,080. Patented June 16, 1885-.

(No Model.) 2 Sheets-Sheet 2. W. S. McLEWEE.

FORGED DRAFT LA MP. No. 320,080. Patented June 16., 1885.

N. PETERS, Pmmum n han Wa:h1ngion.D.C.

XVILLIAM S. DICLEVEE, OF NE\V YORK N. Y.

FORCED-DRAFT LAMP.

SPECIFICATION forming part of Letters Patent No. 320,080, dated June 16,1885.

Application filed April 4, 1884.

To all whom, it may concern:

Be it known that I, WILLIAM S. MOLEWEE, ofNew York, in the county andState of New York, have invented a certain new and useful Improvement inLamps, of which the following is a specification.

I will describe a lamp embodying my improvement in detail, and thenpoint out its various features in claim.

In the accompanying drawings, Figure 1 is a vertical section ofalampembodying my improvemcnt, and Fig. 2 is a horizontal section of thesame.

Similar letters of reference designate corresponding parts in bothfigures.

A designates a base-piece of any suitable material.-as, for instance,sheet metal. It is provided with suitable apertures or openings, (1, forthe entrance of air.

In the base-piece is a chamber, A, containing a train of wheelavork, B,and actuated by a spring or its equivalent. This chamber is providedwith perforations b, through which air may pass.

Above the base-piece A is a shell, (J, of sheet metal, shown ascylindrical at thelower portion and flaring at the upper portion.

D designates a reservoir for containing oil or other burning-fluid. Itis arranged within the shell 0, and conforms to that partof the shellwherein it is located. It is provided with lugs c, which rest upon lugs(1, extending from the shell. In this way the reservoir is supported inthe shell. A space is left for the circulation of air between thereservoir and the shell.

Below the reservoir and within the lower part of the shell are fans E F.The fan E is of large diameter, extending nearly across the shell; butthe fan F is of much smaller diameter. These fans are mounted on ashaft, G, which is rotated by the train of wheelwork B.

The reservoir is furnished with a burner, H, which is here shown ashaving two wicktubes, although it may have but one. This burner may beremovabl y secured to the reservoir by screw-threads or other suitablemeans, and the opening wherein it fits may serve as the filling-monthfor the reservoir.

The wick tube or tubes of the burner may (No model.)

be provided with any suitable means for adjusting the wicks. As hereshown, ratchet or star-toothed wheels arranged on shafts e are employedfor this purpose.

The shell 0 is provided with a removable cover, 0. This cover is shownas secured in place by screw-threadsf; but it may be secured in place byother means, or it may be merely slipped on. It extends over the top ofthe reservoir at a suitable distance therefrom to allow oftl'lecirculation of air between it and the reservoir.

The cover 0 has at the apex or center an air-chamber, I, extending toabout a level with the tip of the wick-tubes, and surmounted by adeflector, J, whereby air is caused to impinge upon the flames whichemanate from the wick-tubes.

The airchamber I is preferably formed in two sections, the upper ofwhich is connected to the lower by ahinge, g, and is capable of beingsecured to the other when closed by a spring-catch.

The upper section of the air-chamber may be swung back to afford accessto the tips of the wick-tubes.

In the upper section of the air-chamber is a perforated diaphragm, K.

The deflector J has two slots, one over the tip of each wick-tube.

The air set in motion by the fans E F rises through the shell to theburner and supports combustion.

No chimney or other draft-inducing device is required.

A globe or shade may be used in conjunction with the burner, if desired.Y

By using two fans arranged one above the other upon the same shaft, oneof which is of smaller diameter than the other, I provide for subjectingall of the ascending column of air to the direct action of the fans.

I am aware that lamps have been constructed provided with a train ofwheel-work operating a single fan to set in motion a current of air forsupporting combustion at the burner. I use two fans arranged one abovethe other, one of said fans being of smaller diameter than the other.Vhen but one fan is used, much of the ascending column of air is notbrought within its influence as it passes upward near the shaft uponwhich the fan is arranged, and

so comes bu-tslightly in contact with the blades of the fan which arenarrowest at=that point,-

vided with air-inlets, a train of wheel-work, two fans arrangedone-above the other upon the-same shaft,'"oi1e of i said fansbeing ofless diameter than the other areservoir, aburner onthe reservoir, anair-chamber arranged about the burner, a perforated diaphragm within theair-chamber, and a deflector surmounting the air-chamber, substantiallyas specified.

W. S. MOLEWEE.

Vitnesses:

T. J. KEANE, E.--T. ROCHE.

